RU2811796C1 - Universal scaffolding - Google Patents

Abstract

FIELD: construction.

SUBSTANCE: used in the repair, recovery and restoration of cultural heritage sites in cramped conditions of hard-to-reach areas. The universal scaffolding contains vertical and horizontal prefabricated load-bearing frames consisting of square-section pipe rods connected by connecting elements-sliders, the free ends of which on the outer sides are diagonally connected by adjustable links, while the square-section pipe rods are drilled on four sides with mounting holes through which connecting slider elements are attached using bolted connections, made of square-section pipes crossed and welded in four dimensions, one of which has a through passage that allows the docking slider elements to move along the rods, change sizes and create additional cells, tiers and floors.

EFFECT: increasing the safety, manufacturability and versatility of scaffolding design, and reducing labor costs in the manufacture and installation of scaffolding in cramped conditions of hard-to-reach sites.

1 cl, 4 dwg

Description

The invention relates to construction and can be used in the repair, restoration and restoration of cultural heritage sites in cramped conditions of hard-to-reach areas.

The design of scaffolding is known (patent No. 2158813 dated November 10, 2000), which includes vertical posts on which support brackets, tubular longitudinal braces and tubular transverse braces are rigidly fixed. Fastening between vertical posts, tubular longitudinal and transverse braces is carried out by means of a support bracket and a wedge equipped with a stop and made in its lower part with a cutout in the form of a segment. The support bracket is made of a rectangular plate, bent in the form of a bracket; on one of its sides there is a through hole, ending with a saddle on its shelf. The support brackets are rigidly installed with their ends on vertical posts in pairs opposite each other and in perpendicular planes. Each end of the tubular longitudinal connection and the tubular transverse connection is made upsetting, the cross-section of which is a rectangle with rounded corners. A cut is made on its larger sides, and holes for a wedge are made on its smaller sides. One of the smaller sides of the rectangle is intended for installation on the saddle.

The described design has insufficient stability in space, a complex configuration that limits its use in cramped conditions, and is characterized by high metal consumption.

Scaffolding for construction and installation work is also known (author's certificate No. 817174 dated March 30, 1981), in which a fastening unit for braces and struts is provided to speed up the installation of scaffolding and the versatility of their use. The device allows you to increase load capacity, improve safety, reliability, versatility and manufacturability. Scaffolding includes racks with ribs with holes attached to them, spacers and braces, at the ends of which connecting devices are mounted, each of which contains an end element with a cantilever pin inserted into a hole in the rib, an axis passing through a hole made in the end element, a rotating tongue placed on an axis and fixed by means of a clamping element located on the same axis.

The disadvantage of this design is the complexity of the device and manufacturing technology of the connecting unit, which consists of several parts.

The closest technical solution is multi-tiered scaffolding containing tubular prefabricated vertical frames with docking units, interconnected by diagonal and horizontal connections on brackets, horizontal decking, ladders, screw jacks and thrust bearings (patent No. 17554 dated April 10, 2001). The tubular elements are made of square pipes and are interconnected by guides located inside the upper part of the vertical frame post. The bracket is made in the form of rods that pass through the racks of the supporting frame and have a hinged movable part at the end opposite to the rack, and the rigidity element of the frame is a ladder located in its plane. In addition, the horizontal connections are made in the form of a tubular element with flattened end parts provided with mounting holes. The diagonal connections are made in the form of two tubular elements, hingedly connected in the center and having flattened end parts with fastening elements and installed in a checkerboard pattern relative to the plane of the scaffolding.

However, the presence of diagonal connections of the supporting frames, installed in a checkerboard pattern relative to the plane of the scaffolding, is not enough to ensure the rigidity and stability of the structure. Making tubular elements from square pipes complicates the manufacturing technology of scaffolding. The design of the hinge joint for fastening the diagonal and horizontal connections of the load-bearing frames is not convenient enough for quick assembly and disassembly of scaffolding in cramped conditions.

The technical result of the claimed invention is to increase the safety, manufacturability and stability of scaffolding structures, increase versatility and reduce labor costs in the manufacture and installation of scaffolding in cramped conditions of hard-to-reach sites.

The technical solution is that universal scaffolding contains vertical and horizontal load-bearing frames consisting of square-section pipe rods connected by connecting slider elements, and the free ends of the slider elements are diagonally connected by adjustable connections.

Universal scaffolding contains vertical and horizontal rods-pipes of square cross-section 1, identical in design and size, and connecting elements-sliders 2, made of profiled square-section pipes in accordance with GOST 8639-82, as well as diagonal adjustable braces 3 (Fig. 1, Fig. 4).

Diagonal adjustable links 3 are made of smooth reinforcement. Their fastening to prefabricated vertical and horizontal frames is carried out using a known intermediate tightening control connection or other adjustable detachable fastening. The rigidity of the design of universal scaffolding is ensured by diagonal adjustable links 3, installed, as necessary, in the free side of the section along the lateral, external and internal contours of the scaffolding.

Installation of scaffolding is carried out as follows.

When assembling from bottom to top, sections are assembled from horizontal frames by connecting pipe rods 1 with connecting slider elements 2 (Fig. 1) by aligning the holes and bolting them through them. If it is necessary to create additional cells, tiers and floors between two connecting slider elements, additional slider elements are installed (Fig. 4), aligning the corresponding holes 4 of the pipe rod (Fig. 2) and the connecting slider element (Fig. 3) and connecting them with a bolted connection. Then, vertical pipe rods are installed into the pipes of the connecting slider elements with a through passage, aligning the outer holes and bolting them together. In the vertical pipe rods 1, intermediate slider elements 2 can also be mounted to create additional cells, tiers and floors (Fig. 4), combining the corresponding holes 4 of the vertical pipe rod 1 and the connecting slider element 2 and connecting them with a bolted connection.

Next, to ensure the rigidity of the structure (Fig. 4), adjustable connections 3 connect the diagonally located free projections of the butt slider elements 2.

In the same order, the following are mounted in height, from bottom to top: cell, tier and floor until the design mark is reached.

Lateral extension of universal scaffolding is carried out according to the following schemes: from left to right; from right to left. It is possible to assemble from top to bottom using the scaffolding method.

Thus, various methods of assembling universal scaffolding allow them to be used in cramped conditions when going around and around obstacles.

Claims (1)

Universal scaffolding containing vertical and horizontal prefabricated load-bearing frames consisting of square-section pipe rods connected by connecting elements-sliders, the free ends of which on the outer sides are diagonally connected by adjustable links, characterized in that the square-section pipe rods are drilled on four sides mounting holes through which connecting slider elements are attached using bolted connections, made of square-section pipes crossed and welded in four dimensions, one of which has a through passage that allows the connecting slider elements to move along the rods, change sizes and create additional cells, tiers and floors.